Defensive publication

ABSTRACT

IMPROVEMENT IN BLENDS OF PVC AND ETHYLENE/CARBON MONOXIDE COPOLYMERS WHEREIN MINOR AMOUNTS OF AN ALIPHATIC PETROLEUM HYDROCARBON TACKIFYING RESIN OR MICROCRYSTALLINE WAX ARE ADDED TO PROMOTE PROCESSABILITY WITHOUT SERIOUS LOSS OF MECHANICAL PROPERTIES AND YIELD FILMS OF HIGH CLARITY.

DEFENSIVE PUBLICATION UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Dec. 16, 1969, 869 O.G. 687. The abstracts of Defensive Publication applications are identified by distinctly numbered series and are arranged chronologically. The heading of each abstract indicates the number of pages of specification, including claims and sheets of drawings contained in the application as originally filed. The files of these applications are available to the public for inspection and reproduction may be purchased for 30 cents a sheet.

Defensive Publication applications have not been examined as to the merits of alleged invention. The Patent Oflice makes no assertion as to the novelty of the disclosed subject matter.

PUBLISHED DECEMBER 4, 1973 T917,012 PVC-CONTAINING BLENDS AND FILMS THEREOF Tibor G. Mahr, Wilmington, Del., assignor to E. I. du Pont de Nemours and Company, Wilmington, Del. Continuation of application Ser. No. 321,577, Jan. 8, 1973, which is a continuation of application Ser. No. 169,798, Aug. 6, 1971. This application June 11, 1973, Ser. No. 369,114

Int. Cl. C08f 45/52 US. Cl. 260-285 D No Drawing. 10 Pages Specification Improvement in blends of PVC and ethylene/carbon monoxide copolymers wherein minor amounts of an aliphatic petroleum hydrocarbon tackifying resin or microcrystalline wax are added to promote processability without serious loss of mechanical properties and yield films of high clarity. 

